Re: ExecRTCheckPerms() and many prunable partitions

David Rowley <dgrowleyml@gmail.com>

From: David Rowley <dgrowleyml@gmail.com>
To: Amit Langote <amitlangote09@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2021-06-30T14:33:46Z
Lists: pgsql-hackers
On Thu, 1 Jul 2021 at 01:34, Amit Langote <amitlangote09@gmail.com> wrote:
> For now, I have implemented the idea 2 as the attached patch.

I only just had a fleeting glance at the patch. Aren't you
accidentally missing the 0th RTE here?

+ while ((rti = bms_next_member(checkPermRels, rti)) > 0)
  {
- RangeTblEntry *rte = (RangeTblEntry *) lfirst(l);
+ RangeTblEntry *rte = (RangeTblEntry *) list_nth(rangeTable, rti - 1);

I'd have expected >= 0 rather than > 0.

David



Commits

  1. Add a test case for a316a3bc

  2. Correctly set userid of subquery relations' child rels

  3. Fix buggy recursion in flatten_rtes_walker().

  4. Remove some dead code in selfuncs.c

  5. Update outdated comment in ApplyRetrieveRule

  6. Rework query relation permission checking

  7. Generalize ri_RootToPartitionMap to use for non-partition children

  8. Stop accessing checkAsUser via RTE in some cases

  9. Add 'missing_ok' argument to build_attrmap_by_name